Draft-gearing for railway-cars.



. PATENTED DEG. 17,1907. J. noomzsom. DRAFT GEARING FOR RAILWAY CARS.-

APPLICATION FILED MAR. 7.1907.

2 SHEETS-SHEET l.

PATENTED 11130. 17, 1907.

-J. P. GOURSON. DRAFT GEARING FOR RAILWAY CARS.

APPLICATION FILED MAR. 7, 1907.

2 SHEETSSHEBT 2.

[n21 entor.

JOHN F. COURSON, OF PITCAIRN, PENNSYLVANIA.

DRAFT-GEARING iron RAILWAY-CARS.

T all whom it may concern:

Be it known'that I, JonNv F. CoUnsoN, a citizen of the United States, residing at Pitcairn, Pennsylvania, have invented certain new and useful Improvements in Draft-Gear for Railway-Cars, of which the following is a specification.

My invention relates to draw ear apparatus for railway cars and m oiject is to provide a simple and convenient construc..

- tion and: arrangement of parts which will accomplish the ends in view.

The mvention consists in the features, bination and arrangement of the arts hereinafter described and out in the claims. y l In the accompanyings drawings, Figure 1 is a vertical sectional view through the apparatus parts being shown in side eleva- Fig. 2 is a transverse sectional view.

i paTts in a difi'erent position. tail sectional view of one .of t he friction blocks. Fig. 5 is a front view of thesame; Fig. 6 is a sectional view of the other friction block which is a companion to that shown in Fig. 4x Fig. 7 is a front view of Fig. f3. Figs. 8 and 9 areyiews of the wedgebarf' In these dr gs 1 indicates thecou ll bar, 2 the stra o yoke bolted thereto a i. ends and Whi'c yoke embraces within it the improved arrangement and combination of parts constitutin my invention. This improvement inclu es a wedge bar 3 ta ered at its opposite ends on its upper and ower faces, the said tapered ends entering ta ered openings in the friction blocks 45. i pair 0 these blocks is arranged ateach end of the wedge bar and the outermost member of each 40 pair of friction blocks is arranged to bear upon'-an abutment plate 6, 6. These abutment or follower plates extend transversely of the draft gear and at their: ends they bear upon abutments 7 bolted or riveted as at 8,

to the sills 9 of the car. The friction blocks have inclined faces 10 in contact and have limiting stops 11 at the ends of these inclined ces which limit the lateral motion of one block in respect to the other. A

spring 12 is interposed between the airs-of friction blocks, said spring surrounding the wed e bar-3.

The arrangement of the wedge bar in re- 'spect to the friction blocks and the arrange- 65 ment of the friction blocks. to each other is comparticular y pointed o -is a view similar to Fig. '1 with the Fi 4 is a depecification of Letters Patent.

Application filed March '7. 1907. Serial No. 361.027

Patented Dec. 1?, 1907'.

such that the upper inclined face of the wedge bar bears upon the incline of the tapered opening in one of the friction blocks or plates, while the lower inclined face of the 1 wedge bar at the same end of said bar bears against the inclined wall of the tapered open- 7 ing in the companion friction block; so that upon a relative movement of the wedge bar and friction blocks inthe line ofdraft the said friction blocks o'r'plates will be moved in opposite directions by reason of the wedge shaped end of the wedge bar working inthe conical openings or recesses of the friction blocks or plates. This action takes place under both a pulling or buffing strain and is illustrated l11-'Fig.'3, wherein the friction blocks are shown as having been moved in wardly in relation to the yoke and in this movement friction has been created under heavy pressure between the inclined facesfof the companion friction blocks. As repre sented in Fig.3. The spring 12 has been compressed, owing to the draft gear having I been subjected to the buffing action; In this action the abutment plate forms the stop 'or78o backing piece-rind the spring is compressed and the parts of the draft gear operated by the movement of the front abutment or follower plate 6towards the rear abutment plate '6, the latter abutment plate remaining-es in position because itbears u onthe-abutf; ment 7.' As before stated. the lotion blocks are provided with shoulders or limitingl'stops j at 1.1 which are of importance as the -limit the separating movement of the. f riction blocks and keep the blocks in proper position and from moving or pushing farther back than necessary; These-stopsalso keep the friction blocks from pressing unduly against the yoke and they perform; therefore,;ai1important office in preventing shock or'jar on the yoke When the spring reacts such shock would otherwise tend to bend the yo'lre a or make therivets .workloose.

I claim as "my invention ion 1. In combination in a draft 'gear;'a spring,

a pair of friction block's at theen'd' 'of'tlie spring and movable 6neupon the other I transversely of'the line of draft and wedge means'for moving bothof the saidj friction 1'0'5 blocks) transversely; substantially". as; de- 15 p 2 3111 cornb'inatio'ii-in aiaftgea'r, a spring,

a Pair offriction blocks reatness-6r the f 1'' said spring under pressure thereofand mov loosely arranged, in the s able on each other transversely of the line of draft and wedge means for moving the said friction blocks transversely when the gear is subjected to boiling or pulling strain, substantially as described.

3. In combination in a draft gear, a spring, a pair of friction blocks arranged to move transversely of the line of draft having inclined surfaces in contact and having also inclined surfaces to cooperate with wedge means and wedge means for operating the said friction plates or blocks, substantially as described.

- 4. In combination in a draft gear, a spring, a pair of friction blocks or plates arranged at the end of-the spring having tapered openings or recesses and a wedge member coacting therewith, substantially as described.

5. In combination in a draft gear, a spring, pairs of friction blocks or plates between whichthe said spring is interposed, a member within the springand having tapered ends for operating the members of the pairs of friction blocks and abutment means, said friction blocks operating transversely one on the other and in o positc directions, substantially as describecll 6. In combination in a draft gear, a spring, a pair of friction blocks having inclined surfaces in contact and movable transversely of the line of draft, wedge means for operating the said friction blocks and stop means for limiting the outward movement of-the said friction blocks, substantially as described.

7. In combination in a draft gear, a spring, friction blocks movable transversely to the line of draft and having incline'd surfaces in contact and inclined wedge receiving surfaces, wedge means for operating the said friction blocks, a yoke s1. rounding the spring, friction blocks and wedge means and stops on the friction blo'cli's to limit their outward l movement and prevent shock, substantially as described.

' S. In combination in a draft gear, a spring, pairs of friction blocks between which the spring is interposed said friction blocks having inclinedwedge receiving surfaces and being movable transversely to the line of draft,

a bar within the spring having inclined ends I engaging the inclined wedge receiving surfaces of the friction plates or blocks, a yoke or .draft frame and abutment means, substantially as described. I

9. In combination in a draft gear, a spring, each end offthe spring movable transversely to the line of draft having inclinedsurfaces in contact, and openings or recessed attheir central portions presenting inclined surfaces, a member ring and having inclined or wedge shape ends and a draft frame and abutment means, substantially as described. t a

10. In combination in a draft gear, a

! s ring, a pair of friction blocks at each end of f tlie spring movable transverselyto the line I of draft, the members of each pair having f their friction surfaces in contact to move one upon the other, and wedge means for moving ,the members of each pair inwardly from" their normal positions under buffing or pulla ing strains, substantially as described. 11. .In combination in a draft gear, a spring, a pair of friction blocks, one of said blocks having an opening extending theref through and wedge means extending through the said opening and contacting with the wall thereof and having its projecting end conltacting with the other wedge block, said wedge means serving to move the friction, 5 blocks one upon the other transversely of. the i line of draft, substantially as described.

12. In combination in a draft gear, a springfa wedge member, a friction block lower and abutment means, said wedge block lmoving transversely and inwardly under I bui'ling and pulling strain and also having movement longitudinally of the draft gear to laugment the compressing action on the spring, substantially as described.

j 14. In combination in a draft gear, a a spring, a wedge member, a pair'oflriction l blocks, having inclined friction surfaces, co-

' means, said friction blocks having movement i inwardly and transversely under buffing and pulling strains and having also movement. towards each other to augment the compressing action of the s' ring under buffing and pulling, substantial y as described.

-15. In combination in a draft gear, a spring, friction members, and abutment and bu'lling and pulling strains having movement to augment the compressing'aotion of the spring, substantially as described.

16. In combination in adraft gear, a. wedge bar, a pair of friction blocks at each end thereof havinginclined friction surfaces in contact, a spring encircling the Wedge bar and abutment and follower means, the members of each pair of friction blocks having movement inwardly or away'from the sills under buffing and pulling strains and the o osing members of the pairs of friction bloc aving movement towards each other to aughaving a friction surface and 'a coacting frichaving an inclined friction surface and folacting friction members having inclined fric ,tion surfaces and abutment and followerfollower means,'said friction members under ment the" compressing action on the spring l tions and having a damping effect on the under buffing and pulling strains, substanwedge bar at each end, substantially as detially as described. scribed.

- 17. In combination in l. draft gear, a Z In testimony whereof, I affix my signature 5 Wedgel bar,f 1 pair of frlictioln llailicks at each in presence of two witnesses.

- endt ere-3 aving inc ine s1 aces in con- 1 v tact, a spring interposed between the airs of JOHN CO friction blocks and abutment and ollower .1 Witnesses: means, the members of each pair of friction I EDWIN TRUEB,

10 blocks moving inwardly in opposite direc- 2 GEORGE W. MEHAFFEY. 

